Shuttle motion and carrier.



R. KRENZ.

SHUTTLE MOTION AND CARRIER.

APPLICATION FILED AUG.2l, 1916.

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pa pro RUDOLPH KRENZ, 0F MIDDLETOWN, CONNECTICUT, ASSIGNOR TO THE RUSSELL MANU- FACTURING COMPANY, OF MIDDLETOWN, CONNECTICUT, A CORPORATION.

SHUTTLE MOTION AND CARRIER.

Specification of Letters Patent.

Patented June 26, 1917.

Application filed August 21, 1916. Serial No. 116,070.

To all whom it may concern:

Be it. known that I, RUDOLPH KRENZ, a citizen of the United States, residing at Middletown, in the county of Middlesex and State of Connecticut, have invented certain new and useful Improvements in Shuttle Motions and Carriers, of which the following is a specification.

My invention relates to improvements in shuttle motions and carriers as applied to lathe of a loom equipped with my improved shuttle motion and carrier.

Fig. 2-is a plan view of the same;

Fig. 3 is a sectional view, on? an enlarged scale, on the line was of Fig. 1.

Fig. 4 is a bottomview ofthe cam.

Fig. 5 is a front elevation on a considerably reduced scale of the shuttle and connected parts.

The lathe shown in Fig. 1' comprises the usual block or timber 10" that supports the usual guide-ways for the shuttle 11, consist= ing'ofthe lower guide 12 and the upper guide 13, arranged in pairs, and interrupted by the weaving space 14, in which are 10- cated'the shed and the reed when in use. The tiinber lO is elongated and a plurality ofsets of guide-ways are mounted thereon for the simultaneous operation ofa'corresponding plurality of shuttles 11, only one set however being shown in the drawing.-

The individual guides 12 and 13 are short, and are secured to a pair ofposts 15 by means of screws 16, the upwardly from the timber 10.

The opposed faces of the guides 12 and 13 have longitudinally extending ribs 17 that coiiperate with corresponding grooves 18 on the lower and upperfaces of the shuttle 11 and serve as the guides proper.

The shuttle 11 as usual is of appreciably greater length thanthe gap 14 caused by the interruption of-the guide-ways to provide the weaving space, suitably to bridge the posts 15 extending said gap and to provide for properly guidmg the shuttle 11, whereby during the travel of the shuttle 11 it will alternately be positioned at first entirely between one pair of guides 12 and 13, then in bridging the gap will be partially engaged with the two pairs of guides, and finally will pass over entirely to the other, mating pair of guides 12 and 13 on the other side of the gap 13.

The parts described and the movements thereof are essentially ordinary.

The carrier means for effecting the movement of theshuttle described and the movement for imparting motion to the said carrier means are of special construction, as will be described herewith.

The individual guides 13 that combine to form the upper member of the guide-way for the shuttlell are provided on the upper face with a longitudinally extending rib 19. Opposed to the said rib 19and in spaced relation thereto is a guide-rib 23 on the lower face of a longitudinally extending guide strip 20 secured to the posts 15 by screws 21. Slidablyengaged with the guideway formed by the ribs 19 and 23 is a carriage or carrier 2 2'that supports the shuttle engaging devices and to which motion is imparted by the movement referred to above.

The said movement comprises a shaft 24 mounted on one end of the timber 10 by means of a standard 25. A sprocket wheel 26 mountedon" the shaft 24, operated by a sprocket chain 27, imparts a rotary move ment tofthe shaft 24. The connection be tween the shaft 24 and the carrier 22 comprises a crank arm 28 mounted on the said shaft 24 and a connectingrod 29 connecting the free end of the said crank arm 28 with one end of the said carrier 22.

As the shaft 24 is rotated a reciprocating movement is imparted to the carrier 22.

In use I prefer to impart a partial rotation only to the shaft, first in one direction and then a return movement, with a dwell at the end of each movement, the movement being efiected by a pull first on the portion The shuttle engaging devices comprise a pair of swinging dogs pivotally mounted on the carrier 22 that engage by their lower,

free ends 31 with'the cooperating grooves 32 in the'upper face of the shuttle 11. The mounting for the dogs 30 comprises a bracket 33 secured to the carrier 22 by the screws 34-. On the front portion of the bracket 33 is a channel 35 of appreciable length, vertically directed and having the bottom or rear wall 37 in alinenient with the rear, end wall 36 of the groove 32. The side walls 38 of the channel 32 are spaced suitably to provide an operative lit for the dog 30. The pivotal pin 39 extends across the channel 35, adjacent the upper end thereof.

The dog 30 comprises a straight rod, pivotally mounted on the pivotal pin 39, the lower portion extending through the channel 35 and into the groove 32 under normal conditions, the upper portion extending an appreciable distance above the pivotal pin 39, a bearing roller 40 being mounted on the extreme upper end. The rear Wall 37 of the channel 35 is cut away at the upper end to permit the upper end of the dog 30 to swing rearwardly as the dog 30 is swtmg on the pivot 39. The dog 30 is thus free to have the lower end 31 swing forwardly, so as to become disengaged from the groove 32, the rearward movement, however, of the said lower end being limited by the rear wall 37 of the channel 35.

The two dogs 30 that engage with the shuttle 11 are spaced laterally by a space appreciably greater than the width of the weaving space 14, and one of the dogs at least is always in engagement with the shuttle 11 when the shuttle is positioned in the said space 14, although each dog 30 while traveling across the weaving space 14 is dis-. engaged from the shuttle l1.

The means for operating the dogs 30 so as to effect the engagement and disengage? ment thereof with the shuttle 11 consists of a cam 41 having a groove that is an operative fit for the bearing roller 40.

The cam 41 comprises a single casting, secured to the posts 15, having the said groove 42 on the lower side. The said groove 42 comprises end portions 43 positioned directly over the line of movement of the pivotal pin 39, suitable to position the dogs 30 vertically so as to be in position of engagement with the shuttle 11, a middle portion 44 over the weaving space 14, suitable to tilt the dogs 30 to the position of disengagement from the shuttle 11, and intermediate portions connecting the end portions 43 with the middle portion 44.

I prefer to mount the cam 41 on a plate 45, as shown, the said plate 45 being mounted on the posts 15, and extending the full length of the structure, the portion bridging the weaving space 14 serving as one of the guides for the reed. A second plate 46, let into the posts15, and spaced reardownwardly wardly from the front plate 45, serves as the rear guide for the reed.

The shuttle motion and are adapted to be applied to looms already in use, the changes being limited essentially to providing the grooves or slots in the shuttle, the other parts needed being'additional parts that are applied to the loom, rather than changes in the original structure.

Furthermore, the upper individual guides 13 for the shuttle 11 serve as the lower guide for the carrier. 7 V

By providing the described the dogs are held for anappreciable portion of their length while in engagement with the shuttle.

carrier described channel for the dogs as V The end portions 43 of the cam groove serve to bring the dogs30 to the vertical, engaging position, as shown in Fig. 3, and as the movement of the carriage brings the dogs laterally to one side or the other of the cam 41 such vertical position is maintained 7 by the rear edge of the roller engaging with the front face of the upper guide member 23 for the carriage, a portion of said guide member 23 being shown in end elevation in the said Fig. 3. That is tosay, the cam with its groove serves to effect the necessary movements of the dogs in traveling across weaving space, a shuttlepositioned in'the said guide-way having a transverse slot adjacent each end, on the upper side, a carrier slidably mounted above the said guideway, a cam positioned above the said weaving space, having-a cam groove, a pair of dogs pivotally mounted on the said carrier,

the lower ends being adapted to engage with the said slots, and the upper ends having rollers that are operative in the said cam groove. r

2. In a lathe for a loom, a pivotally mounted dog for engaging with the shuttle, .the said dog being in the form of a rod, having pivotal supporting means intermediate the ends, one of the said ends being provided with guide means for tilting the said dog on the said pivotal supporting means, the other end serving to engage with agroove in the said shuttle, the body portion of the said dog between the said pivotal supporting means and the said other end'being of appreciable length, and a channel fitting and engaging with the said body portion for steadying the said dog while the said other end is engaged with the shuttle.

3. In a loom comprising a pair of swinging dogs that serve as actuating devices for the shuttle comprising in combination a bracket and a dog pivotaliy connected to the said bracket, the said bracket having a vertical channel of appreciable length, and open at the front side, the said dog being in the form of a rod, fitting in the said channel and extending through the same, pivotally connected to the upper end of the said channel, the lower end of the said dog being adapted to engage with a groove in the shuttle, the upper end of the said dog being provided with a roller, and a member positioned above the said bracket, the said member having a cam with the said roller.

4:. In a 100m, a carriage, guide strips therefor, a pair of swinging dogs operatively mounted on the said carriage, the said dogs serving as actuating means for the shuttle, a cam having a groove for engaging with the said dogs serving to guide the said dogs in their movement across the weaving space, and the face of one of the said guide strips serving as the guiding means for the said dogs to one side of the said cam.

RUDOLPH KRENZ.

groove for coacting Witnesses:

B. E. SPENCER, LOUIS M. SCHMIDT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

